That group definitely includes Cisco, who actually died back in Season 1 at the vibrating hand of Reverse-Flash, which is where the Vibe powers first came into play.
That’s certainly how it’s meant to be taken at face value, and the Season 5 villain Cicada is known for heading up a cult that murders anyone that The Flash ever saved.
So will Cicada or another villain be responsible for eliminating Cisco’s very useful powers, or will Cisco himself be the one who makes the decision to cut ties with his Vibe side?
And that doesn’t mean Cisco has to die too, right?